According to the construct image presented by The International Mouse Knockout Consortium this allele has a single FRT site, an engrailed 2 splice acceptor site, an EGFP-cre/ERT2 cassette and a neomycin selection cassette that is driven by an automonous promoter all inserted in the intron between exons 9 and 10 and one loxP sequence inserted in the intron between exons 13 and 14. (J:155845)